There's a few companies in NYC you could audition for, but it's difficult to get into. You do have to be able to get and maintain an erection on set with the crew there, stop when they need to stop shooting, f#ck in many awkward and uncomfortable angles and cumm within a couple of minutes of when they want you to. They may have you take viagra to help stay erect. You should have good enough length so that it's visible in the insertion shots and generally be in decent enough shape, clean and smell good.
Othwerwise it's a dream job. like Tom Byron once said. "You walk in, and there's a hot 20 year old girl, with t1ts pointed to the sky. Her hair is professionally done and she's been professionally made up. Then you have hot sex with her. And the best part is, when you're all done, as you walk out the door, they hand you a check."
I looked into it once on a horny whim when I was in my 20's. Got the same response: "Are you willing to do gay?" I wasn't. But they were nice enough to talk to me a while and fill me in. Wait a sec... That sounds wrong. I mean, they clued me in. Whew.
Another way to break in is to find a hot girl who wants to get into porn, and be her sole partner (because she doesn't want to take chances getting diseased). Then she gets you into the business that way, and maybe you go from there. She probably will. There's also gang bang production companies you can go to that look for anonymous guys to film. But be willing to do scenes where other guys are spurting and some of it's landing on you, or where you're doing sloppy seconds or thirds, and be rushed, if you can get it up in a room full of naked d1cks.